Temporary binder.



J. J. DIEHL.

TEMPORARY BINDER.

APPLIUATION FILED FEB. 24, 1908.

9 1 5 1 6'3 Patented Mar. 16, 1909.

NORRIS PETERS (NIL. LITHO. WASmNGTdN. D C

f To all whom it may concern:

JOHN J. DIEHL, OF CHICAGO, ILLINOIS.

TEMPORARY BINDER.

Specification of Letters Patent. "Patented March 16, 1909.

Applicatipn filed February24, 1908. Serial 1N0. 417,231.

. Be it known thatl, JOHN J. DIEHL, a citizen of the United States, residing at Chicago,

'- in the-county of Cook and State of Illinois,

have invented certain new and useful Improvements in Temporary Binders, of which the following is a specification.

My invention relates to temporary binders used for holding loose leaves in book form;

andhas to do more specifically with the I structure of the frame members and means whereby the covers of the binders are united withsaid frame members.

Among the chief objects of the invention are, to provide main frame members of such construction that they may be economically blanked out of sheet-metal 'and folded up in such manner as to'form, by the same operation, tubular body-members and integral pintle supports of hinge members; to provide a novel form of combined leaf hinge and metallic insert which serves to unite the cover member with the main frame member; to rovide a construction which, while presentmg an almost perfectly flat exterior, enables the cover members to be turned back or o ened to a sufiiciently wide angle to bring t e uplifted or open covering into self-sustaining position; to provide a main back frame member which may be punched to form a locked receptacle or recess at the same time the member proper is blanked out in case it be used in one type of binder, and which may be with equal facility adapted to receive a screw actuated locking rod in case it be used as a part of another type'of binder, and in general, to provide an improved m echanism of the character referred to.

- To the'above ends the invention consists in the matters hereinafter described and more. particularlj pointed out in the appended claims.

In the draWings-Figure 1 is a perspective view of one of the tubular main frame members and the combined hinge leaf and insert member-connected therewith; Fig. 2 is a perspective view of one of the main frame members of a slightly modified construction, and

rovided with a lock receiving recess; Fig. 3 1s a transverse section of one'of the frame members and a-fragmentary portion of an attached cover. Fig. 4. is a view of the blank from which the main frame member shown in either Fig. 1 or 2 is formed; Fig. 5 is a longi tudinal vertical sectional view of the back portion of a completed binder. Fig. 6 is a l her for the cover is formed.

In loose leaf binders of the type to which the present invention pertains, a pair of main support the covers as 3 and 4 hinged thereto; the upper and lower ends of the binder-being united by suitable posts, as 5, or other sheet holding or impaling devices. Theconstruction of the main frame strips is such that various forms of locking mechanism may be used. Inasmuch as these locking mechanisms are well-known it is not thought necessary to show them.

The binder frame members of the present invention are equally well adapted for use in binders of either type above described.

Referring to the drawings, 6 designates a blank in the form of a strip of sheet-metal provided with a centrally exposed, longitudinally-extending series of oblong, rectangular o enings 7 separated by hinge strips n practice I make this blank in lengths of indefinite extent and cut it into sections of desired lengths for the different sizes of binders. The blank thus formed is folded upon itself along the central line of the openings 7 and the cross strip portions 8 formed into hinged knuckles or binder supports which extend only with that surface of the frame member which is to become the outer surface of the binder. The lateral edges of the openings 7 are rounded in as well as the under portiohs of the cross strip memin Figs. 3 and 5, and similarly, the lateral edges of the blank 11 and 12 are curved toward each other so as to meetat the back 2 edge of the frame member as clearly indicated in Figs. 3 and 5, thus forming a hollow tubular structure with integral hinge knuckles. Suitably spaced blocks or fillers 13 will be inserted in the tubular frame members thus formed and rigidly fixed in position by means of through rivets.

In case the frame member is to be used as a post binder like that shown in Fig. 5, openings 14 may be punched in the blank at the same time that the blank itself is struck out, which openingsl are subsequently brought into suitable register with each other to receive the posts when the blank is formed up. On the other hand, in case the frame member is to be used with that type of binder requiring a lock to be set in at the center, the blank may be punched with rectangular bers 8 indicated at 9 and 10,- res ectively,

I l view of the blank from which the hinge memframe strips as 1 and 2, respectively, serve to knuckles '19 openings, indicated at -15, andwith suitabliz" post 0 enings, as indica ed in .dotted lines a 16 an 16. In other wbrds, the blank may be punched with all of the apertures re uired,

while it is still in the form of a flat lank, and, if preferred, by the same operation which forms the. blank itself.

Theother feature of the invention resides in a construction of .apeculiar hinge and insert member 17. This member consists of a piece of thin sheet metal which is blanked out in substantially'the form shown in Fig. (i

and subsequently folded u on itself along the.

line extending through t e centers of the rectangular o enings 18 to form the hinge see Fi 1). The folded back ortion is riveted to the main body at suitable mtervals, as indicated at 20, and this member is joined to the main frame member by a;

glued or pasted together so as toadhere toeach other through, these openings, and this, of course, insures a convenient means of preliminarily uniting the cover boards to the inge member in readiness for the subsequent binding or incasing in cloth or leather 17, as the case may be.

- union adds to the final strength of the binder.

, mits the outer half of the cover to'be brought It will be noted b referring to the sectional detail Fig. 5, that the. hinge knuckles of the'insert are offset outwardly relative to the plane oftlie insert itself. This. er-

down so that its exterior is practically flush with the outer surface of the main frame member as 1 and 2. Furthermore, this pecul- Moreover, such a iar configuration of arts permitstheopen ing of the cover mem er at a somewhat wide angle before it encounters the ends of 'the posts 5, as shown in dotted lines in Fig. 5.

It willv be obvious that the details of'conl struction may be modified to some extent without departing from the invention.

I claim as my invention:

1. A temporary binder frame comprising aflattened t'ubular shell, said shell bein formed of a single piece of fiat sheet meta provided with a row of longitudinally extending slots, and laterally projecting hinge loops, formed by binding said strip along the median line of said slots.

2. A temporary binder frame comprising afiattened tubular shell formed ofa single piece of sheet metal and bent longitudinall upon itself, said shell being provided wit inte ral projecting hinge loops formed 'on the ended portion of said frame member.

'3. In combination, a temporary binder frame member consisting of a sheetnietal strip provided with longitudinally extendingslots, said strip being doubled lon ituclinally upon itself a proximately along t e median line of said 5 ots so as to form integral laterally projecting hinge loops, and a sheet metal insert'having similarly formed hinge loops disposed to alternate with the first named 7 hinge loops and a pintle passing through said hinge loops. a I

4. In a temporary binder, the combination of a hollow sheet metal frame'memb'er pro.- vided with integral, projecting hinge-loops,

face to face, and a sheet metallate hinged upon said hinge-loops inserted etween said boards, and provided with one or more relaa cover'consisting of a pair of boards laid 

